#311A9F#311A9F

#311A9F is a dark, vivid violet. Relative luminance 0.039; OKLCH L 36.1% C 0.195 H 278.2°. Best body text is #FFFFFF at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#311A9F
RGB	rgb(49, 26, 159)
HSL	hsl(250, 72%, 36%)
HSV	hsv(250, 84%, 62%)
CMYK	cmyk(69.2%, 83.6%, 0%, 37.6%)
CIE-LAB	lab(23.32, 48.65, -66.73)
CIE-LCH	lch(23.32, 82.58, 306.10°)
OKLab	oklab(36.09% 0.0277 -0.1927)
OKLCH	oklch(36.09% 0.195 278.2)
XYZ	xyz(7.8920, 3.8943, 33.1299)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311A9F #889F1A

analogous

#1A469F #311A9F #741A9F

triadic

#311A9F #9F311A #1A9F31

tetradic

#311A9F #9F1A46 #889F1A #1A9F74

square

#311A9F #9F1A46 #889F1A #1A9F74

split-complementary

#311A9F #9F741A #469F1A

monochromatic

#110936 #21116A #311A9F #4123D4 #6A51E3

Accessibility & contrast

On white

11.80

#311A9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#311A9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311A9F

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311A9F	#FFFFFF	#000000	##FFFFFF
##311A9F	1.00	11.80	1.78	11.80
#FFFFFF	11.80	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA3

Deuteranopia (green-blind)

#00329D

Tritanopia (blue-blind)

#00445E

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #311a9f;
/* rgb */ color: rgb(49, 26, 159);
/* oklch */ color: oklch(36.1% 0.195 278.2);

Tailwind

colors: {
  custom: {
    50: '#7b5cbd',
    500: '#311a9f',
    950: '#000000',
  },
}

SCSS

$custom: #311a9f;
$custom-light: #7b5cbd;
$custom-dark: #000000;

JSON

{
  "hex": "#311a9f",
  "rgb": {
    "r": 49,
    "g": 26,
    "b": 159
  },
  "hsl": {
    "h": 250.376,
    "s": 71.892,
    "l": 36.275
  },
  "oklch": {
    "l": 0.36092,
    "c": 0.19472,
    "h": 278.2
  },
  "luminance": 0.03895
}

Semantic roles & 50–950 ramp

primary

#311A9F

secondary

#B1C550

accent

#EF39CF

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0B0412

muted

#7C7981

Preview Lab

Preview with #311A9F

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →